objective c - NSButtonCell NSSwitchButton doesn't display checked box -

-

the nsbuttoncell code bellow works fine, doesn't visualy display check icon when clicked. ideas why?

  - (nscell *)outlineview:(nsoutlineview *)outlineview datacellfortablecolumn:(nstablecolumn *)tablecolumn item:(id)item {          if ([[tablecolumn identifier] isequaltostring:@"select"]) {              nsbuttoncell *cell = [[nsbuttoncell alloc]init];             [cell setbuttontype:nsswitchbutton];             [cell settarget:self];             [cell setaction:@selector(checkboxchanged:)];             [cell settitle:@""];              return cell;          } else {             nscell *cell = [tablecolumn datacell];             return cell;           }       }

here action code:

- (ibaction)checkboxchanged:(id)sender {      nsbuttoncell *acell = [[sender tablecolumnwithidentifier:@"select"]                       datacellforrow:[sender selectedrow]];       if ([acell state] == nsonstate) {          nslog(@"on");         [acell setstate:nsoffstate];       } else {           nslog(@"off");         [acell setstate:nsonstate];     }  }

i'm not sure why first solution didn't work—maybe didn't have delegate hooked up? note data source , delegate 2 separate things.

the method implemented in answer, data source, not proper place that. data source, , particularly numberofrowsintableview: , tableview:objectvaluefortablecolumn:row:, should only return content being presented, not create view/cell objects.

i recommend creating and configuring nsbuttoncell in xib, if have one, or in same place create table view , columns—that's correct place set each column's cell.


Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more